import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MainClass {
public static void main(String args[]) throws Exception {
// define the pattern
String regex = "First (?!Second)[A-Z]\\w+";
// compile the pattern
Pattern pattern = Pattern.compile(regex);
String candidate = "First Second asdf ";
candidate += "John third, John second asdf, ";
candidate += "John Fourth.";
Matcher matcher = pattern.matcher(candidate);
String tmp = null;
while (matcher.find()) {
tmp = matcher.group();
System.out.println("MATCH:" + tmp);
}
}
}